1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.packageinstaller.role.model; 18 19 import android.content.Context; 20 import android.os.Process; 21 import android.os.UserHandle; 22 import android.os.UserManager; 23 import android.telephony.TelephonyManager; 24 25 import androidx.annotation.NonNull; 26 import androidx.annotation.Nullable; 27 28 import com.android.packageinstaller.permission.utils.CollectionUtils; 29 import com.android.packageinstaller.role.utils.UserUtils; 30 import com.android.permissioncontroller.R; 31 32 import java.util.List; 33 34 /** 35 * Class for behavior of the SMS role. 36 * 37 * @see com.android.settings.applications.DefaultAppSettings 38 * @see com.android.settings.applications.defaultapps.DefaultSmsPreferenceController 39 * @see com.android.settings.applications.defaultapps.DefaultSmsPicker 40 */ 41 public class SmsRoleBehavior implements RoleBehavior { 42 43 @Override isAvailableAsUser(@onNull Role role, @NonNull UserHandle user, @NonNull Context context)44 public boolean isAvailableAsUser(@NonNull Role role, @NonNull UserHandle user, 45 @NonNull Context context) { 46 if (UserUtils.isWorkProfile(user, context)) { 47 return false; 48 } 49 UserManager userManager = context.getSystemService(UserManager.class); 50 if (userManager.isRestrictedProfile(user)) { 51 return false; 52 } 53 TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class); 54 if (!telephonyManager.isSmsCapable() 55 // Ensure sms role is present on car despite !isSmsCapable config (b/132972702) 56 && getDefaultHolder(role, context) == null) { 57 return false; 58 } 59 return true; 60 } 61 62 @Nullable 63 @Override getFallbackHolder(@onNull Role role, @NonNull Context context)64 public String getFallbackHolder(@NonNull Role role, @NonNull Context context) { 65 String defaultPackageName = getDefaultHolder(role, context); 66 if (defaultPackageName != null) { 67 return defaultPackageName; 68 } 69 70 // TODO(b/132916161): This was the previous behavior, however this may allow any third-party 71 // app to suddenly become the default SMS app and get the permissions, if no system default 72 // SMS app is available. 73 List<String> qualifyingPackageNames = role.getQualifyingPackagesAsUser( 74 Process.myUserHandle(), context); 75 return CollectionUtils.firstOrNull(qualifyingPackageNames); 76 } 77 78 @Nullable getDefaultHolder(@onNull Role role, @NonNull Context context)79 private static String getDefaultHolder(@NonNull Role role, @NonNull Context context) { 80 return ExclusiveDefaultHolderMixin.getDefaultHolder(role, "config_defaultSms", context); 81 } 82 83 @Nullable 84 @Override getConfirmationMessage(@onNull Role role, @NonNull String packageName, @NonNull Context context)85 public CharSequence getConfirmationMessage(@NonNull Role role, @NonNull String packageName, 86 @NonNull Context context) { 87 return EncryptionUnawareConfirmationMixin.getConfirmationMessage(role, packageName, 88 context); 89 } 90 91 @Override isVisibleAsUser(@onNull Role role, @NonNull UserHandle user, @NonNull Context context)92 public boolean isVisibleAsUser(@NonNull Role role, @NonNull UserHandle user, 93 @NonNull Context context) { 94 return context.getResources().getBoolean(R.bool.config_showSmsRole); 95 } 96 } 97